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Class Information
Number: 568/855
Name: Organic compounds -- part of the class 532-570 series > Organic compounds (class 532, subclass 1) > Oxygen containing (e.g., perchlorylbenzene, etc.) > Hydroxy containing (h of -oh may be replaced by a group ia or iia light metal) > Acyclic > Polyhydroxy > Acetylenically unsaturated
Description: Compounds which include acetylenic unsaturation.










Sub-classes under this class:

Class Number Class Name Patents
568/856 Purification or recovery 20


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
7456325 Process for the production of a hydroxyalkyne by coupling reaction between acetaldehyde and a terminal alkyne Nov. 25, 2008
7411098 Method for the production of tetrahydrogeranylacetone Aug. 12, 2008
7232933 Preparation and use of diols Jun. 19, 2007
6956141 Method for preparing acetylene alcohols and their secondary products Oct. 18, 2005
6710213 Production process and use for propargyl alcohol and its intermediate Mar. 23, 2004
6641986 Acetylenic diol surfactant solutions and methods of using same Nov. 4, 2003
6586644 Process for producing optically active propargyl alcohols Jul. 1, 2003
6506946 Process for continuous production of acetylenediol Jan. 14, 2003
6462207 Polyethylene glycol diene derivatives Oct. 8, 2002
6369282 Preparation of alkynediols Apr. 9, 2002
6350714 Method for preparing a catalyst and catalysts prepared accordingly Feb. 26, 2002
6297407 Method for producing alkyne diols Oct. 2, 2001
6147266 Method for producing acetylene alcohol compounds using continuous process Nov. 14, 2000
6140545 Preparation of alcohols Oct. 31, 2000
5973213 Process for separating solids from aqueous 1,4-butynediol solutions Oct. 26, 1999
5763688 Method for producing an alcohol Jun. 9, 1998
5444169 Process and apparatus for the synthesis of butynediol Aug. 22, 1995
5420365 Preparation of 2,4-hexadiyne-1,6-diol May. 30, 1995
5410094 Tertiary alkynols Apr. 25, 1995
5349071 Process for preparing tertiary alkynols Sep. 20, 1994
5324869 Substituted-acyclic terpene compound Jun. 28, 1994
5049681 Optically active allyl alcohol and process for producing leucotriene B.sub. 4 Sep. 17, 1991
4965376 3,9-dihydroxynonyne and its derivatives protected at the 9-OH function Oct. 23, 1990
4960959 Process for the manufacture of alkynediols by reaction of ketones with acetylene Oct. 2, 1990
4954527 Novel polyacetylene compositions and their methods of use Sep. 4, 1990
4952292 Process for manufacturing 2,4-hexadiyne-1,6-diol Aug. 28, 1990
4847440 Method of manufacturing propynol Jul. 11, 1989
4584418 Preparation of butynediol Apr. 22, 1986
4536491 Agglomerates of malachite crystals and method for their preparation Aug. 20, 1985
4388216 Regenerating heavy metal catalysts for butynediol production Jun. 14, 1983
4317905 Preparation of compounds containing two conjugated double bonds cis-cis and cis-trans Mar. 2, 1982
4294997 Process for the control of pH in the ethynylation of formaldehyde Oct. 13, 1981
4288641 Process for the preparation of 1,4-butynediol and related catalyst Sep. 8, 1981
4288640 Carrying out exothermic reactions between a gas and a liquid Sep. 8, 1981
4202822 1-Hydroxymethyl-1-oxo-prostane derivatives of the F.sub.1 series May. 13, 1980
4180687 Reaction of formaldehyde in butynediol Dec. 25, 1979
4165330 Asymmetric synthesis via optically active chelating agents Aug. 21, 1979
4149004 Method of inhibiting cuprene formation in ethynylation reaction Apr. 10, 1979
4143231 Butinediol using catalyst prepared from synthetic malachite Mar. 6, 1979
4127734 Preparation of butynediol using bismuth modified spheroidal malachite Nov. 28, 1978
4119790 Low pressure catalytic ethynylation process Oct. 10, 1978
4117249 Acetylenic alcohols, their derivatives and process for their production Sep. 26, 1978
4117248 Continuous, low pressure ethynylation process for the production of butynediol Sep. 26, 1978
4113967 15,16-Dioxy prostenoic acids and esters Sep. 12, 1978
4111959 15,16-Dioxy prostenoic acids and esters and intermediates in their preparation Sep. 5, 1978
4112001 Diacetylenic alcohol corrosion inhibitors Sep. 5, 1978
4110249 Preparation of bismuth modified spheroidal malachite Aug. 29, 1978
4107082 Malachite preparation Aug. 15, 1978
4093668 Manufacture of butynediol Jun. 6, 1978
4085151 Butynediol production Apr. 18, 1978

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